Fine and coarse tuning assembly for cavities



FIG. 1 is a perspective view with both fine and coarse tuning adjustment in;

FIG. 2 is a perspective view with both fine and coarse tuning adjustment out;

FIG. 3 is a top plan view;

FIG. 4 is a side view; and;

FIG. 5 is a bottom plan view. 

The ornamental design for a fine and coarse tuning assembly for cavities, as shown. 